Pusher for retort ovens



Nov. 15, 1932.

E. w. SCHELLENTRAGER 1,888,201

PUSHER FOR, RETORT OVENS Filed Jan. 5, 19 2 sheets-sheet 1 ATTORNEY NOV- 15., 1932- E. w. scHl-:LLENTRAGER I 1,888,201

PUSHER FOR RETORT OVENS Filed Jan. 5, 1931 2 Sheets-Sheet ,2`

#d .1f/ i Z9 j 'ATTORNEY 5,0 through the other end.

Patented Nov. 15, 1932 EUGENE W. scHELLENrnAGEnoEsHAxER HEreHTs, oHTo, AssIGNon ".roArLAs BOLT.

& SCREW GGMPANY, OF CLEVELAND,\OHIO IUSHER/V FOR RETORT OVENS Application med January 5, 1931. serial 110.506,654.

My invention relates to devicesfor'removing substances from retort ovens. d

An object of my invention is to provide a simple and Vefiicient means for removing 5 substances from retort ovens.

Another object of my invention is to provide a simple and eficient means to loosen substances from the floors of retort ovens and at the same time push the same out of the ovens. y Y

Another object of my invention is to pro-` vide a ram structure of suflicient strength and rigidity to withstand obstructions encountered inthe ovens without deforming the ram structure detrimentally.

Another object of my invention is to provide adjustment for-the head on the ram so that the bottom of the head canbe adi justed to different heights of vbottoms of ovens as well as to different relations between the bottom of the head and the Hoor of an oven so that the bottom ofthe head Can move over the floor of an oveneither on actual contact therewith orvvarious distances from the same.

. Another object of my invention is toprovide ananchoring` means for the ram operating `cable on the ram and to-make-this anchoring means adjustable to also serve the purpose of 'taking -up slack in the cable. Another object of my invention is to provide an edge at the bottom and forwardly o the .head to more effectively loosen substance' on lthe loorof ovens.

.d Substances treated in retort ovens must be removed `from the same which is usually -done by devices commonly called pushers which have a ram structure movable `to enter the oven at one end and push substances out Another'object Vof my invention is to pro-f In many instances, cracking crude oil for instance, substances adhere Amore or less to the floors of ovens and usually must or at least should be removed before a new charge is entered lto avoid contamination or for other reasons andv the ram .e in such removals often encounters seriousV obstructions such as caked substance or even heavy luidic substancesvadhering tightly and not easily removable. l

My invention aimsto provide the necessary means to elfectivelyV and efficiently remove substances from such retort ovens. v I

' For the purposelofillustrating my inven- Y tion but not for limitation purposes, I have shown in the accompanying drawings and specifically describe in this specification one type of apparatus whereby my invention can be carried'out but I am aware that my invention can be carried out with .other apparatus. In the accompanying drawings mentioned: Fig. l is a plan view of a pusher embodying my invention and shows a pusher to travel on a Jhorizontal track in front of a series of wide retort ovens. having horizontal floors and a ram movable longitudinally thereon and having a head adapted for theovens. Fig. 2 is a side view of the pusher shown in Fgzl ,v j V- Fig. Sis a front end view partly in section of the pusher shown in Fig. 1.1

Fig. 4 is a transverse section taken Vin -a vertical plane indicated by the line in Fig. 2.

Fig.. 5 is av longitudinal section taken vin a 4vertical plane indicated by the line 5 in Fig. 1.

Similar reference characters Vrefer to similar parts. throughout the views. i

The general framing of the pusher is supported on the paired track-wheels 10 and 11 running on the tracks l2 and 13 laid in front of a battery of retort ovens so that the pusher can be moved opposite or in front of any one of the ovens gin this instance by the motor A in driving relation with one of the wheels 10 and lland Vcontrolled by the rheostat B in the cab C sidewise adjacent to the framing of the pusher. Y E The ram comprises the head D and the stem .The vstemis built up of two longitudinal,

Y sidewise or laterally spaced I beams 14 and 15 (best seen in Fig. 4) securely latticed by the squarely disposed lattice members 16 and the oppositely inclined lattice members 17 to provide. rigidity in the stem.V

rlhe vertically disposed plate 18fforms a part of the head and is of a. length a little less than the width of the oven 19 and is secured to the ends of both of the I beams14 and 15 by means of theclip'angles 20 and eX- tends transversely thereof. The gusset platesV 20a are provided to stiffen and maintainthe angular relation between the plate 18 and the ends of both I beams. l

The channel iron21a forms a part ofthe head and extends V'substantiallyv to the full length of the plate' 18 andis located along the upper edge thereof and permanently secured in place thereon. The back of the web of the channel iron is in abutment on the forward face of the plate and the legs of the channel extend forwardly of the plate. c

The channel liron 21 forms a part of the head and extends substantially to the full length of the plate'18 and is located along the lower edgethereof; Theback of the web ofthe channel iron 21 is in abutment on the forward face of the plate and the legs of the channel extend 'forwardly of the plate.

` The bolts 22 extend through the web of the channel 214and through elongated slotsin the plate 18 to' provide an'adjusting means whereby the bottom of the head can be Vadj usted vertically into alignment with the top of the bench 23, or the level of the floor in the oven 19, or to any vertical relation to the top of the bench or the floor of the oven within the range of the adjustingmeans. The nuts 24 retain the channel iron 21 in position on the plate 18Yupon tightening thereof after adjustment.'`

It is' observed thatV the plate 18 and the channel irons thereon are disposed vertically to form a substantially square abutment on substance inthe oven during a pushing oper- Y ation of the headso that substance can be pushed out' of the oven elfectively.

varied to an inclined abutment but such inclination should not vbe carried to a degree which would permit substances to be directed over the top of the-'head orundul'y crowded vto the door of the oven during a pushing operation of the head.

The forwardly extending legs of the channel irons assist toV prevent upward movement of substance duringa pushing operation of the head and the forward end 25 of the lower leg of the channel iron 2.1 forms7 or can be used as an edge to effectively loosen substance frorn the floor of anv oven. l

A truss structure, comprising the inc-lined parts 26 and 27 having the outer ends thereof secured tov the rear face of the plate 18 and the transverse part 28 secured to both I beams is interposed between the head and the ram. Thelatticed stem described combined with the trussed head described provides rigidity in the stem so that the same does not bend or flex excessively laterally when, for inf' stance, one side of the head encounters heavier resistance than the other.

The trussing of the head also prevents the head from being dislocated in its relation to 'to' move'the ram.

The shafts 29 and 30 are ournaled. inthe framing of the pusher at the front and rear ends thereof respectively. I

The shaft 29 carries the flanged Wheels 31 fand 32 for contact on vthe bottomfof the I beams `to vertically support and laterally '1 guide the ram at the frontend of the framing and also: carries the sheave wheel for thejcable 34. y

The shaft 30, located at the rear' end of the framing7 carries flanged wheels designated ase36 and similar to the wheels 31 and 32 on the shaft 29 for contact on the bottom of the lIbeams to vertically support and laterally guide the ram at the rear end of the framing and alsocarries the sheave wheel 37 for the cable 34.

TheV shaft 88 vis journaled inthe Aforward or front endof the'framing and carries the `flanged wheels 39 and 40 for contact on the top of the I beams to vertically confine and laterally guide the ram at the frontend of the framing.

VThe shaft 41 is journaled in the rear endl of the frau'iingY and carries the'anged wheels 42 and 43 for contacten the top of the I `beams to vertically confine and laterally guide the ram at therrear end-ofthe framing.

The shaft 44 is journaled on the framing and is operated through suitable gearing by the motor 45A controlled by the rheostat 46 in the cab and carries the driving sheave wheel Y Y 47 for Vthe cable. The square abutment mentioned may be The cable'34 extends over the sheave Wheels 47 33 and 37 and has the threaded eyebolt 48 Von one end thereof extending through the bracket 49 secured to the ram and also has the threaded eyebolt 50 on the other end thereof extending through the bracket 51 secured to the ram. The nuts 52 aord an easy-means Yfor adjust-ing the tension of thevcable as well as the relation of the cable to the ram.v

This cable end and bracket structure at once provides anchoring and adjusting means for the cable and on and in relationtoy the ram. Y

The cut out switch 53 is supportedon the framing and has the free end operating 'arm 54.

` The cut out blocks are supported on the stem of the ram in suitable relation Vtothe free end of the arm 54 so that the same contact this free end and move the arm and thereby cut out or shut olf electricity to the motor to automatically stop movement of the ram when the same reaches the end of a desired stroke or movement. Y

Upon rotation of the motor, in one direction, after the pusher has been'moved to a position opposite or in front of an open oven, the cable is moved longitudinally and there-v by moves the ram longitudinally forward.

During this movement of the ram, the bottom of the head first slides along on or moves over the top of the bench 23 according to the vertical adjustment of the bottom of the head and then slides along on or moves over the floor of the oven according to the vertical adjustment of the bottom of the head in relaf tion tothe floor.

or shut off of power to the motor and thereby automatically arrests further movement of the ram in the same direction.

An operator can, ofcourse, control this movementof the ram through the rheostat 46.Y

Upon rotation of the motor in the opposite direction, the head is moved out of the oven. The switch 52 and the cut out block 55V can be duplicated on the other end of the pusher device to operate the cut out switch as described above to stopthe outward movement of the ram when the same reaches the end of its stroke. Y f

As mentioned above, I am aware that my invention can be applied to different kinds of types of pushers. I am also aware that changes and modifications and substitutions can be made in the structure and arrangement of elements or parts shown and described within the spirit and intent and scope of my invention and the appended claims; therefore, without limiting myself to the precise application of my invention as shown and described nor to the precise structure and arrangements of elements or parts as shown and described;

I claim:

1. In a pusher for a retort oven, a head adapted to enter and travel in retort ovens, a straight stem on said head and guided on Vsaid pusher, a power means to move said stem and thereby move said head, said stem being of less width than said head to minimize the width of the pusher and comprising two longitudinally parallel parts, lattice members holding said parts together and op- 'c 2. A pusher for retort ovens including af longitudinally reciprocal ram having a head adapted to enter retort ovens and composed of two vertically related parts, the lower one of saidparts being adjustable vertically to align the bottom of said head with a floor of an oven, and a guided stem on said hea longitudinally of said ram.

3. In a pusher for retort ovens, a reciprocal ram, a head on said ram, an oven Hoor scraping member on said head, said floor scraping member being adjustable on said head forjadjustment thereony to adapt the pusher for different heights of oven floors independently of other'parts of the pusher.

In testimony of the foregoing, I atlix my signature.

EUGENE w. scHELLENTEAGER. 

